Rate - Bryant 987MB Installation, Start-Up, Operating And Service And Maintenance Instructions

987MB: Installation, Start-up, Operating and Service and Maintenance Instructions
Table 19 – Orifice Size and Manifold Pressure (In. W.C.) for Gas
Input Rate
To Be Used with Modulating Furnaces EXCEPT 987MB60060C21
MODULATING FURNACE
(TABULATED DATA BASED ON 20,000 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE A V G G . A S
RANGE HEAT VALUE 0.58
AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
ft (m)
(Btu/cu ft) No. Max/Min
900 43 3.8 /0.60
0 925 43 3.6 /0.55
(0) 950 43 3.4 /0.55
975 44 3.7 /0.60
to 1000 44 3.5 /0.55
1025 44 3.3 /0.55
2000 1050 44 3.2 /0.50
(610) 1075 45 3.7 /0.60
1100 46 3.7 /0.60
U.S.A. 800 42 3.4 /0.55
2001 (611) 825 43 3.8 /0.60
to 850 43 3.6 /0.60
3000 (914) 875 43 3.4 /0.55
900 44 3.7 /0.60
Canada 925 44 3.5 /0.55
2001 (611) 950 44 3.3 /0.55
to 975 44 3.2 /0.50
4500 (1372) 1000 46 3.8 /0.60
775 42 3.3 /0.55
3001 800 43 3.8 /0.60
(915) 825 43 3.6 /0.55
850 44 3.8 /0.60
to
875 44 3.6 /0.60
4000 900 44 3.4 /0.55
(1219) 925 44 3.2 /0.50
950 45 3.7 /0.60
750 42 3.3 /0.50
4001 775 43 3.7 /0.60
(1220) 800 43 3.5 /0.55
825 44 3.8 /0.60
to
850 44 3.5 /0.55
5000 875 44 3.3 /0.55
(1524) 900 44 3.2 /0.50
925 46 3.8 /0.60
725 42 3.2 /0.50
5001 750 43 3.7 /0.60
(1525) 775 43 3.4 /0.55
800 44 3.7 /0.60
to
825 44 3.5 /0.55
6000 850 44 3.3 /0.50
(1829) 875 45 3.7 /0.60
900 46 3.7 /0.60
675 42 3.4 /0.55
6001 700 42 3.2 /0.50
(1830) 725 43 3.6 /0.60
750 43 3.4 /0.55
to
775 44 3.6 /0.60
7000 800 44 3.4 /0.55
(2133) 825 44 3.2 /0.50
850 46 3.8 /0.60
MODULATING FURNACE
(TABULATED DATA BASED ON 20,000 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE A V . G G A S
RANGE HEAT VALUE 0.58
AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
ft (m)
(Btu/cu ft) No. Max/Min
650 42 3.4 /0.55
7001 675 43 3.8 /0.60
(2134) 700 43 3.5 /0.55
725 44 3.8 /0.60
to
750 44 3.5 /0.55
8000 775 44 3.3 /0.55
(2438) 800 45 3.8 /0.60
825 46 3.7 /0.60
625 42 3.4 /0.55
8001 650 43 3.8 /0.60
(2439) 675 43 3.5 /0.55
700 44 3.7 /0.60
to
725 44 3.5 /0.55
9000 750 44 3.3 /0.50
(2743) 775 45 3.7 /0.60
9001 600 42 3.3 /0.55
(2744) 625 43 3.7 /0.60
650 43 3.5 /0.55
to
675 44 3.7 /0.60
10000 700 44 3.4 /0.55
(3048) 725 44 3.2 /0.50
* Orifice numbers shown in BOLD are factory-installed.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
S E P C F I C I G R A I V Y T O F N T A U R L A G A S
0.60 0.62 0.64
No. Max/Min No. Max/Min No. Max/Min
42 3.2 /0.50 42 3.3 /0.55 42 3.4 /0.55
43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50
43 3.5 /0.55 43 3.6 /0.60 43 3.7 /0.60
44 3.8 /0.60 43 3.4 /0.55 43 3.6 /0.55
44 3.6 /0.60 44 3.8 /0.60 43 3.4 /0.55
44 3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60
44 3.3 /0.55 44 3.4 /0.55 44 3.5 /0.55
45 3.8 /0.60 44 3.3 /0.50 44 3.4 /0.55
46 3.8 /0.60 45 3.8 /0.60 44 3.2 /0.50
42 3.5 /0.55 42 3.6 /0.55 42 3.7 /0.60
42 3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55
43 3.7 /0.60 42 3.2 /0.50 42 3.3 /0.55
43 3.5 /0.55 43 3.7 /0.60 43 3.8 /0.60
44 3.8 /0.60 43 3.5 /0.55 43 3.6 /0.55
44 3.6 /0.60 44 3.8 /0.60 43 3.4 /0.55
44 3.4 /0.55 44 3.6 /0.55 44 3.7 /0.60
44 3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55
45 3.8 /0.60 44 3.2 /0.50 44 3.3 /0.55
42 3.4 /0.55 42 3.5 /0.55 42 3.6 /0.60
42 3.2 /0.50 42 3.3 /0.55 42 3.4 /0.55
43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50
43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60
44 3.7 /0.60 43 3.4 /0.55 43 3.5 /0.55
44 3.5 /0.55 44 3.7 /0.60 44 3.8 /0.60
44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55
44 3.2 /0.50 44 3.3 /0.55 44 3.4 /0.55
42 3.4 /0.55 42 3.5 /0.55 42 3.6 /0.55
43 3.8 /0.60 42 3.3 /0.50 42 3.4 /0.55
43 3.6 /0.60 43 3.7 /0.60 43 3.8 /0.60
43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.60
43 3.4 /0.55
44 3.7 /0.60 44 3.8 /0.60
44 3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60
44 3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55
45 3.7 /0.60 44 3.2 /0.50 44 3.3 /0.55
42 3.3 /0.55 42 3.4 /0.55 42 3.5 /0.55
43 3.8 /0.60 42 3.2 /0.50 42 3.3 /0.55
43 3.5 /0.55 43 3.7 /0.60 43 3.8 /0.60
44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55
44 3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60
44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.60
44 3.2 /0.50 44 3.3 /0.55 44 3.4 /0.55
46 3.8 /0.60 45 3.8 /0.60 44 3.2 /0.50
42 3.5 /0.55 42 3.6 /0.60 42 3.8 /0.60
42 3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55
43 3.7 /0.60 43 3.8 /0.60 42 3.3 /0.50
43 3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60
44 3.7 /0.60 43 3.4 /0.55 43 3.5 /0.55
44 3.5 /0.55 44 3.6 /0.60 44 3.7 /0.60
44 3.3 /0.55 44 3.4 /0.55 44 3.5 /0.55
45 3.8 /0.60 44 3.2 /0.50 44 3.3 /0.55
A11251A
S P E C F I C I G R A V T I Y O F N A T U R A L G A S
0.60 0.62 0.64
No. Max/Min No. Max/Min No. Max/Min
42 3.5 /0.55 42 3.6 /0.60 42 3.7 /0.60
42 3.2 /0.50 42 3.3 /0.55 42 3.4 /0.55
43 3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50
43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.60
44 3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55
44 3.4 /0.55 44 3.5 /0.55 44 3.7 /0.60
44 3.2 /0.50 44 3.3 /0.55 44 3.4 /0.55
46 3.8 /0.60 45 3.8 /0.60 44 3.2 /0.50
42 3.5 /0.55 42 3.6 /0.55 42 3.7 /0.60
42 3.2 /0.50 42 3.3 /0.55 42 3.4 /0.55
43 3.6 /0.60 43 3.7 /0.60 42 3.2 /0.50
43 3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55
44 3.6 /0.60 44 3.7 /0.60 44 3.8 /0.60
44 3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55
44 3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55
42 3.4 /0.55 42 3.6 /0.55 42 3.7 /0.60
42 3.2 /0.50 42 3.3 /0.55 42 3.4 /0.55
43 3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60
44 3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55
44 3.5 /0.55 44 3.7 /0.60 44 3.8 /0.60
44 3.3 /0.55 44 3.4 /0.55 44 3.5 /0.55
A11251B
Table 20 – Orifice Size and Manifold Pressure (In. W.C.) for Gas
To Be Used with Modulating Furnaces 987MB60060C21 Only
(TABULATED DATA BASED ON 20,200 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE V A G G . S A
RANGE
HEAT VALUE
AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
ft (m)
(Btu/cu ft) No.
900 42
0 925 43
(0) 950 43
975 44
to 1000 44
1025 44
2000 1050 44
(610) 1075 45
1100 46
U.S.A. 800 42
2001 (611) 825 42
to 850 43
3000 (914) 875 43
900 44
Canada 925 44
2001 (611) 950 44
to 975 44
4500 (1372) 1000 45
775 42
3001 800 42
(915) 825 43
850 43
to
875 44
4000 900 44
(1219) 925 44
950 45
750 42
4001 775 43
(1220) 800 43
825 44
to
850 44
5000 875 44
(1524) 900 44
925 45
725 42
5001 750 43
(1525) 775 43
800 44
to
825 44
6000 850 44
(1829) 875 45
900 46
675 42
6001 700 42
(1830) 725 43
43
750
to
775 44
7000 800 44
(2133) 825 44
850 45
(TABULATED DATA BASED ON 20,200 BTUH MAX-HEAT / 8,000 BTUH MIN-HEAT PER BURNER,
DERATED 2%/1000 FT (305M) ABOVE SEA LEVEL)
ALTITUDE
A V . G G A S
RANGE
HEAT VALUE
AT ALTITUDE Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press Orifice Mnfld Press
ft (m)
(Btu/cu ft) No.
650 42
7001 675 42
(2134) 700 43
725 43
to
750 44
8000 775 44
(2438) 800 44
825 46
42
625
8001 650 42
(2439) 675 43
700 44
to
725 44
9000 750 44
(2743) 775 45
9001 600 42
(2744) 625 43
650 43
to
675 44
10000 700 44
(3048) 725 44
* Orifice numbers shown in BOLD are factory-installed.
59
Input Rate
P S C E F I C I G R A I V Y T F O N T A R U L A G S A
0.58 0.60 0.62
Max/Min No. Max/Min No. Max/Min No.
3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42
3.7 /0.55 43 3.8 /0.60 42 3.2 /0.50 42
3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 43
3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43
3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60 43
3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44
3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44
3.8 /0.60 44 3.2 /0.50 44 3.3 /0.50 44
3.8 /0.60 45 3.7 /0.60 44 3.2 /0.50 44
3.4 /0.55 42 3.5 /0.55 42 3.7 /0.55 42
3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42
3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50 42
3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 43
3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43
3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60 43
3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44
3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55 44
3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44
3.4 /0.55 42 3.5 /0.55 42 3.6 /0.55 42
3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42
3.6 /0.55 43 3.7 /0.60 42 3.2 /0.50 42
3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55 43
3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55 43
3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60 43
3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44
3.8 /0.60 44 3.2 /0.50 44 3.4 /0.55 44
3.3 /0.50 42 3.4 /0.55 42 3.6 /0.55 42
3.8 /0.60 42 3.2 /0.50 42 3.3 /0.50 42
3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60 42
3.8 /0.60 43 3.5 /0.55 43 3.6 /0.55 43
3.6 /0.55 44 3.7 /0.60 43 3.4 /0.55 43
3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44
3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55 44
3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44
3.3 /0.50 42 3.4 /0.55 42 3.5 /0.55 42
3.7 /0.60 42 3.2 /0.50 42 3.3 /0.50 42
3.5 /0.55 43 3.6 /0.55 43 3.7 /0.60 42
3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43
3.5 /0.55 44 3.7 /0.55 44 3.8 /0.60 43
3.3 /0.50 44 3.4 /0.55 44 3.6 /0.55 44
3.8 /0.60 44 3.3 /0.50 44 3.4 /0.55 44
3.8 /0.60 45 3.7 /0.60 44 3.2 /0.50 44
3.5 /0.55 42 3.6 /0.55 42 3.7 /0.60 42
3.2 /0.50 42 3.3 /0.50 42 3.5 /0.55 42
3.7 /0.60 43 3.8 /0.60 42 3.2 /0.50 42
3.4 /0.55 43 3.5 /0.55 43 3.7 /0.55 43
3.7 /0.60 44 3.8 /0.60 43 3.4 /0.55 43
3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60 44
3.2 /0.50 44 3.4 /0.55 44 3.5 /0.55 44
3.7 /0.60 44 3.2 /0.50 44 3.3 /0.50 44
S P E C F I C I G R A V T I Y O F N A T U R A L G A S
0.58 0.60 0.62
Max/Min No. Max/Min No. Max/Min No.
3.4 /0.55 42 3.6 /0.55 42 3.7 /0.60 42
3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42
3.6 /0.55 43 3.7 /0.60 42 3.2 /0.50 42
3.4 /0.55 43 3.5 /0.55 43 3.6 /0.55 43
3.6 /0.55 44 3.7 /0.60 43 3.4 /0.55 43
3.4 /0.55 44 3.5 /0.55 44 3.6 /0.55 44
3.2 /0.50 44 3.3 /0.50 44 3.4 /0.55 44
3.8 /0.60 45 3.7 /0.60 44 3.2 /0.50 44
3.4 /0.55 42 3.5 /0.55 42 3.7 /0.55 42
3.2 /0.50 42 3.3 /0.50 42 3.4 /0.55 42
3.6 /0.55 43 3.7 /0.60 43 3.8 /0.60 42
3.8 /0.60 43 3.4 /0.55 43 3.6 /0.55 43
3.6 /0.55 44 3.7 /0.60 44 3.8 /0.60 43
3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44
3.8 /0.60 44 3.2 /0.50 44 3.3 /0.50 44
3.4 /0.55 42 3.5 /0.55 42 3.6 /0.55 42
3.8 /0.60 42 3.2 /0.50 42 3.3 /0.55 42
3.5 /0.55 43 3.6 /0.55 43 3.8 /0.60 42
3.8 /0.60 43 3.4 /0.55 43 3.5 /0.55 43
3.5 /0.55 44 3.6 /0.55 44 3.7 /0.60 44
3.3 /0.50 44 3.4 /0.55 44 3.5 /0.55 44
0.64
Max/Min
3.5 /0.55
3.3 /0.50
3.8 /0.60
3.6 /0.55
3.5 /0.55
3.8 /0.60
3.6 /0.55
3.4 /0.55
3.3 /0.50
3.8 /0.60
3.6 /0.55
3.3 /0.55
3.8 /0.60
3.6 /0.55
3.4 /0.55
3.7 /0.60
3.6 /0.55
3.4 /0.55
3.7 /0.60
3.5 /0.55
3.3 /0.50
3.8 /0.60
3.6 /0.55
3.4 /0.55
3.6 /0.55
3.5 /0.55
3.7 /0.55
3.4 /0.55
3.2 /0.50
3.7 /0.60
3.5 /0.55
3.8 /0.60
3.6 /0.55
3.4 /0.55
3.6 /0.55
3.4 /0.55
3.2 /0.50
3.6 /0.55
3.4 /0.55
3.7 /0.60
3.5 /0.55
3.3 /0.50
3.8 /0.60
3.6 /0.55
3.3 /0.50
3.8 /0.60
3.5 /0.55
3.8 /0.60
3.6 /0.55
3.4 /0.55
A11621A
0.64
Max/Min
3.8 /0.60
3.5 /0.55
3.3 /0.50
3.7 /0.60
3.5 /0.55
3.7 /0.60
3.5 /0.55
3.3 /0.50
3.8 /0.60
3.5 /0.55
3.2 /0.50
3.7 /0.55
3.4 /0.55
3.7 /0.55
3.4 /0.55
3.8 /0.60
3.5 /0.55
3.2 /0.50
3.6 /0.55
3.8 /0.60
3.6 /0.55
A11621B